Seiko Cal. 4437 - 765

This Hand-Winding model from 1965 features a 36mm Hardlex-Coated Steel case. It features a Black dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-914d3531a724]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1965

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